The two consistent results were: allowing female suffrage resulted in a more liberal tilt in congressional voting for both houses, and the extent of that shift was mirrored by the increase in turnout due to female suffrage. The effects are quite large.

and, as shown in the figure reproduced here:

Granting women the right to vote is estimated to raise total expenditure and revenue by 13 percent on average in our sample.

Compare the graph here to Sean Carroll's graph of feminism versus global warming, and you'll see that not only did women destroy our economy, they also destroyed our environment. If only Vox and Lott had been paying attention to this vital spurious correlation, our lives would all be better.